1. But the damage done to his left eye remains largely unknown, amid reports the optic nerve was damaged when his helmet and visor was struck by a 800 gram steel damper spring at 275kmh last Saturday afternoon.
但是关于他左眼的损伤程度却一直没有准确的报告，期间有报道称在他的头盔被那个RP差劲的弹簧以275km/h的速度砸坏时他的左眼也跟着一起坏掉了
2. Use of the Slip-line Method in Calculating Extrusion Force of the Steel Helmet with Cold Extrusion Moulding
计算冷挤压成型钢盔挤压力的滑移线法
3. I have made the same helmet but better from 18 guage steel, it took about 35 hours but i finished it well, it is painted with 3 coats of platework red oxide primer and finshed with the high gloss red and gold and finished with automotive clear coat.
我已经说了同样的头盔，但更好的18号钢，花了约35个小时，但我完成得很好，这与3的platework红色外套氧化底漆和finshed高绘有红色和金色光泽和成品汽车清漆。